7(x+8)-4(x-3)=77

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Solution for 7(x+8)-4(x-3)=77 equation:


Simplifying
7(x + 8) + -4(x + -3) = 77

Reorder the terms:
7(8 + x) + -4(x + -3) = 77
(8 * 7 + x * 7) + -4(x + -3) = 77
(56 + 7x) + -4(x + -3) = 77

Reorder the terms:
56 + 7x + -4(-3 + x) = 77
56 + 7x + (-3 * -4 + x * -4) = 77
56 + 7x + (12 + -4x) = 77

Reorder the terms:
56 + 12 + 7x + -4x = 77

Combine like terms: 56 + 12 = 68
68 + 7x + -4x = 77

Combine like terms: 7x + -4x = 3x
68 + 3x = 77

Solving
68 + 3x = 77

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-68' to each side of the equation.
68 + -68 + 3x = 77 + -68

Combine like terms: 68 + -68 = 0
0 + 3x = 77 + -68
3x = 77 + -68

Combine like terms: 77 + -68 = 9
3x = 9

Divide each side by '3'.
x = 3

Simplifying
x = 3

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